By hook or by crook ( যে কোন উপায়ে ) You must do this work by hook or by crook.
A blessing in disguise( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
In force( বলবৎ ) This law is in force now.
As if( যেন ) He swims so beautifully as if he is the Olympic gold medalist.
A bed of roses thorns( কন্টকময় জীবন ) Life is nothing but a bed of roses.
Slip of the pen( লেখায় অসতর্কতাবশতঃ সামান্য ভুল ) This mistake is due to a slip of the pen.